public void GetSpiralPoints_MultiplePointsCreate_SpiralChangeOnCertainDirection(int countPoints, bool isClockwise)
{
var testSpiral = new ArchimedeanShape(center, (isClockwise ? 1 : -1) / (2 * Math.PI));
var spiralPoints = testSpiral.GetNextSpiralPoints(countPoints);
for (var i = 1; i < spiralPoints.Count; i++)
{
var previousPoint = spiralPoints[i - 1];
var currentPoint = spiralPoints[i];
var pseudoscalarMultiply = (shape.Center.X - currentPoint.X) * (previousPoint.Y - currentPoint.Y) -
(shape.Center.Y - currentPoint.Y) * (previousPoint.X - currentPoint.X);
if (isClockwise)
{
pseudoscalarMultiply.Should().BeLessOrEqualTo(0);
}
else
{
pseudoscalarMultiply.Should().BeGreaterOrEqualTo(0);
}
}
}
public void SetupSpiral() => shape = new ArchimedeanShape(center, 7 / (2 * Math.PI));
